广西桂林不同植被覆盖下土壤含水量空间变异性研究

彭扬建; 甘磊; 马蕊; 张静举; 陶焕壮; 张中彬

doi:10.19303/j.issn.1008-0384.2016.05.011

广西桂林不同植被覆盖下土壤含水量空间变异性研究

彭扬建¹,
甘磊^1,2,3, ,,
马蕊¹,
张静举¹,
陶焕壮¹,
张中彬³

1.
桂林理工大学广西环境污染控制理论与技术重点实验室, 广西桂林 541004;
2.
桂林理工大学广西岩溶地区水污染控制与用水安全保障协同创新中心, 广西桂林 541004;
3.
土壤与农业可持续发展国家重点实验室/中国科学院南京土壤研究所, 江苏南京 210008

基金项目:

国家自然科学基金(41501230);广西自然科学基金(2014GXNSFBA118098);广西矿冶与环境科学实验中心和广西高等学校高水平创新团队及卓越学者计划项目(2014年)

详细信息

作者简介:
彭扬建(1990-),男,硕士生,研究方向:农田水土(E-mail:pb719351@163.com)

通讯作者:
甘磊(1983-),男,博士,研究方向:草原土壤物理性质及土壤水热运动模拟(E-mail:allen_gl2006@163.com)

中图分类号: S152.7
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出版历程
- 收稿日期: 2016-02-29
- 修回日期: 2016-03-14
- 刊出日期: 2016-05-27

Spatial Variability of Water Content in Soil Covered Under Different Vegetations in Guilin, Guangxi

1.
Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology, Guilin University of Technology, Guilin, Guangxi 541004, China;
2.
Guangxi Collaborative Innovation Center for Water Pollution Control and Water Safety in Karst Area, Guilin University of Technology, Guilin, Guangxi 541004, China;
3.
State Key Lab of Soil and Sustainable Agriculture, Institute of Soil Science, Nanjing, Jiangsu 210008, China

摘要

摘要: 以桂林市农业科学院的大豆地、梨树地、甘蔗地为例,分析3个试验区土壤表层0~6 cm土壤含水量变化规律以及空间分布特征。结果表明:降雨是影响土壤表层土壤含水量变化的关键因子,耕作方式也在一定程度上影响土壤含水量变化,梨树地土壤含水量是三者之中最高,甘蔗地土壤含水量次之,大豆地土壤含水量最小; 3个试验区在3种不同土壤水分状态下的土壤含水量空间分布属于中等程度的空间相关性,受降雨因素和人为因素共同制约,在不同条件下他们各自占有的权重不同;尽管不同的植被覆盖条件以及人为因素干扰会影响土壤含水量空间分布,但是土壤含水量较高的区域相对稳定,表明土壤本身具有恢复其空间分布稳定性能力。
- 喀斯特地区 /
- 土壤含水量 /
- 地统计学 /
- 空间变异性
Abstract: In the experimentation fields at Guilin Academy of Agricultural Sciences, the soil (0-6 cm in depth) on the plot, where soybeans, sugarcanes, or peartrees was gown, was sampled to study the variation and spatial distribution of its water content. The results showed that (a) rainfall was the key factor affecting the water content in the surface soil; (b) tillage affected the overall water content to a certain extent; (c) the water content in the soil of the pear tree plotwas the highest, followed by that of the sugarcane field, and the soybean lot had the lowest water content in soil; (d) the spatial distributions of water content in these areas, which varied onmoisture levels,hada moderate degree of spatial correlation; (e) the spatial distributions of water content in soilwere affected by the rainfall, and also human factors in varingdegrees;and (f)the vegetation coverages and artificial disturbances were factors in the spatial variability of the water content in the soils, however, since the distribution at localities with relatively high water levels were stable, the soil might be able tomakenecessary adjustments by itself. The information obtained could benefit studies ondrought prevention for agricultural lands, irrigation for farming, and management for reducing soil erosion in the karst regions in the province.
- karst area /
- soil water content /
- geostatistics /
- spatial variability

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参考文献(3)

GAN L,PENG X H,PETH S,et al.Effects of grazing intensity on soil thermal properties and heat flux under Leymus chinensis and Stipa grandis vegetation in Inner Mongolia,China[J].Soil Tillage Research,2012,118:147-158.

张笑楠,王克林,张伟,等.桂西北喀斯特峰丛洼地坡面土地利用对土壤水分的影响[J].土壤通报,2009,4(6):1250-1254.

王家文,周跃,肖本秀,等.中国西南喀斯特土壤水分特征研究进展[J].中国水土保持,2013,(2):37-41.

施引文献(6)

期刊类型引用(2)

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2.	甘磊，郑思文，黄太庆，陈晓冰，包涵，程芳丽，陈廷速. 桂林喀斯特地区干湿循环过程中土壤水含量的空间变异. 南方农业学报. 2017(09): 1587-1593 . 百度学术